This site is under construction and is both very incomplete and subject to change.
The current cannonical site for documentation is here.

How frequently data is collected after opting in?

Tracking data is automatically sent to our servers once you opt-in or activate a license key. After that, as long as the product is active and you haven’t opted-out, an asynchronous WP Cron will sync the data once every 24 hours, but only if there have been any changes in the collected data points (e.g. change in the WordPress version).